Question

Direction: In each of the following questions, a statement of Assertion is given by the corresponding statement of Reason. Of the statements, mark the correct answer as
(a) If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
(b) If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
(c) If Assertion is true, but Reason is false.
(d) If Assertion is false, but Reason is true.
(e) If Assertion and Reason both are false.
Assertion: Convex mirror is preferred for rearview mirror in vehicles.
Reason: The field view of a convex mirror is lesser than that of concave mirror.
Assertion: Large Concave mirrors are used to concentrate sunlight to produce heat in solar furnace.
Reason:  Concave mirror converges the light rays falling on it at a point.
Assertion: Plane mirror may form a real image
Reason:  Plane mirrors form virtual image if the object is real.
Assertion: When a concave mirror is held under water its focal length will increase
Reason: The focal length of concave mirror is independent of the medium in which it is placed.
Assertion: Concave mirrors are used as make – up mirrors.
Reason: When the face is held within the focus of a concave mirror, then a diminished face of the image is seen in a concave mirror.​

Answer 1

Answer:

conacave is bole mirror also covex both help humans

Answer 2

Answer:

Yakima River was called treacherous because it was a very deep and swift flowing river. So many people had drowned there. There had been several cases of drowning in the river . It was not considered safe because of its rough water and fast current.Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.